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Atari 520 ST+ (C070243 rev.C) Memory upgrade

Today I upgraded an Atari 520 ST+ for a friend of mine with Exxos 4MB RAM. First had to remove all the old DRAM’s.   After that I placed the RAM upgrade. I didn’t make any pictures of the assembling of the riser board, see links below.. More information: http://www.exxoshost.co.uk/atari/last/4MBMMU/index.htm http://www.spiny.org/atari/photos/exxos_4meg_stm/        

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E-Matrix 1230-50 / dead

Amiga 1200 – E-matrix 1230-50MHz Got an E-Matrix 1230-50MHz for repair. Owner tried to replace Oscillator, but that didn’t end up well.. 🙁 Problems found 2 broken traces Dead Oscillator 50MHz Not working SIMM RAM module Fixes Fixed traces with jump wires Replaced Oscillator Used own 8MB SIMM to test card

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